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Flow Chart of Troubleshooting
9-10
9-5. Earphone Part
Earphone does not work
Yes
Not OK
Solder pin 5,6,7 of IFC400
L403, L404, L405, R411
again and check UCP200
Check the circuit
of IFC400
OK
Ok
Not OK
END
Check EAR SW
Solder U302 again
Check the UCP200
Pin R19, T19
Solder UCP200 or replace UCP200
Not OK